New York: The Goldsmith Publishing Company, 1931. First Edition. Cloth. 8vo, gray "foggy" cloth with black lettering on spine and front cover, archival mylar-protected colorful scene of a pilot clinging to the engine of another man's biplane, dust jacket (all corners cropped by publisher), 242 pages +  Ads. Very Good / Very Good. Item #6164
EXTRA SPECIAL copy of this book from the "Sky Detectives" Series. One supposes that "Ambrose Newcomb" was a house pseudonym.
This appealing copy has uniform and typical page-toning, plus the DYNAMIC, BRIGHT & COLORFUL dust jacket. Some wear to dj's corners and the head and foot of its spine, but AS VG as it gets!
(see Project /Gutenberg for the six titles in this series.).